FLAT SYSTEM TRUSS WITH AXIAL YIELD HYSTERETIC DAMPERS AS DAMAGE-CONTROLLED STRUCTURE

Abstract

System truss, of which structure is used as shelters in disasters, is required to fill high earthquake resistant performance. The concept of damage-controlled structure that reduces seismic response is effective to meet the requirement. Required performance of flat system truss as damage-controlled structure is; independence of vertical load and lateral load, reduction of response and damage cost. Here, we proposed structural types of axial yield hysteretic dampers arranged for flat system truss as damage-controlled structure, and did evaluations about required performance of these structural types. Our verification also indicates that the result applies to the large span structures.